Discovering Meiofauna: Magnesium Chloride Extraction Method
Did you know that beneath the surface of seemingly ordinary sand lies a bustling ecosystem filled with microorganisms? Join us today as we demonstrate the magnesium chloride extraction method, a popular technique for uncovering meiofaunal animals thriving within sand.
To embark on this adventure, you'll need a few essentials:
a bucket of sand
a sieve (you can make your own with PVC, super glue and nylon mesh like this: https://a.co/d/gCHXank)
a container (an erlenmeyer flask or any dish will suffice)
Petri dishes (or any other clear dish)
magnesium chloride (we use: https://a.co/d/6q1RLg5)
Magnesium chloride works by relaxing the animals, making them easier to extract from the sand. After mixing the sand with a solution of half 7.5% magnesium chloride in fresh water and half seawater, we let it sit for 15 minutes before sieving.
Using a sieve, we separate the sediment from the solution, revealing a plethora of tiny organisms. With each decanting, we uncover a diverse array of creatures, from nematodes to flatworms and more.
The beauty of this method lies in its simplicity and effectiveness. Whether you're a seasoned collector or a beginner, the magnesium chloride extraction method offers a fascinating glimpse into the hidden world of meiofaunal animals.
Check out the seashell identification guides on our website: https://www.seahorseandco.com/
We’d like to give a big thank you to Dr. Kevin M. Kocot for reviewing this video and for allowing us to borrow sieves and other materials from the lab!
Check out the Kocot Lab here: https://www.kocotlab.com/
Credits:
Hosted by: Meghan Yap-Chiogco
Directed by: Chandler Olson
Filmed By: Nickellaus Roberts, Emma Olson, Meghan Yap-Chiongco, and Chandler Olson
Production crew: Nickellaus Roberts, Emma Olson, Meghan Yap-Chiongco, Chandler Olson, and Bensen Yap-Chiongco
Edited by: Chandler Olson
Reviewed by: Kevin M. Kocot
Music:
The Fun Side of Life by Bireli Snow
Morning Stretch by Timothy Infinite
Sun Screen by Timothy Infinite
Solarity by Guustavv
Entropy by Gregory David
#Microorganisms #MagnesiumChlorideExtraction #NatureExploration